After a long rest since last October, it is finally the season for tea tree awaken and start getting ready for this year’s shincha. At Yokota Tea Farm, this is when we apply the first fertilizer of the spring.
This time we used nitrogenous fertilizer called “calcium cyanamide”, also known as lime nitrogen.
By substituting 24-40% of annual application rate of nitrogen with lime nitrogen in a tea field, about 50% of dinitrogen oxide generated from the soil in furrow can be reduced; as a result, we are able to grow tea in an environmentally friendly manner.
In addition to the environmentally friendly aspect, by mixing inorganic nitrogen content in the soil with fertilizing efficiency-control type fertilizer, the soil is kept in good condition until late June, mainaining the inorganic nitrogen content in the soil even during the rainy season.
Furthermore, there is a report that in the aracha of ichibancha (first plucked tea) and nibancha (second plucked tea) grown with fertilizing efficiency-control type fertilizer and lime nitrogen, free amino acid contamination is high and rich in quality with less crude fiber contained, even though the new tea bud keeps opening*.
*The best timing to pluck tea is when the tea bud opens to about 50-80% (100% is when the tea bud is completely open).
After applying, it is mixed well with the soil.
By mixing the fertilizer and the soil, it prevents vaporization of the fertilizer components and helps decompose effectively. Moreover, if this mixing is not thoroughly done, the rain after fertilization may cause unevenness, resutling in soil erosion or concentration of fertilizer in particular area.
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The City of Shimada in #Japan’s largest production region for #tea, #Shizuoka Prefecture, has a rap music video in English/Japanese/French (French rap sounds pretty cool). All the cool dance scenes are at a temple rather than the #teafields which disappoints but all in all I...
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